Abdullah, H., J. Dahalan, K. L. Hwei, M. Umar, and M. M. Uddin. “Malaysian Financial Stress Index and Assessing Its Impacts on the Economy”. International Journal of Economics and Financial Issues, vol. 7, no. 2, Apr. 2017, pp. 227-35, https://econjournals.com/index.php/ijefi/article/view/4055.